Pipe-protector.



'w. LEMB-Q PIPE PROTECTOR. APPLICATION FLLED OCT. 30. I915.

1,177,256" Patented Ma1'.28,l916.

2 lwvewtoz 1 f William Lamb. %1; @lfloznea I U I ED STATES PATENT OFFICE.

WILLIAM LEMB, or BROOKLYN, NEW YORK.

Specification of Letters Patent.

rim-PRO ECTOR.

Patented M nes, 1916,.

Application filed October 80, 1915. Serial No. 58,935.

Tooll whom it may concern:

1 Be it known that I, WILLIAM Lane, a citizen of the United States, and resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Pipe-Protectors, of which the following is a specification.

This. invention has reference particularly 1 ,to coverings for the blow-off pipes for steam boilers," where the pipe extends downward from the boiler a short distance, and then i has an L from which thepipe extends horizontally rearward or to'one'side of the furnace.

provide an improved torm of protector or The object of the present invention is to 1 covering for the defiectedpipe, that can be readily assembled and secured in position,

d which will entirely protect the pipe from the heat and gases of the furnace, and 1 "which at the same time can be readily disassembled by simply removing a few members for inspection of the pipes,and the removed partsquickly and readily replaced,

and the covering restored to former condition.

f ing one embodiment of my invention, Fig

. 3 ure 1 shows the invention applied to a boiler furnace. Fig. 2 is a similar view with some of the blocks removed. Fig. 3 is an elevation, and Fig. i a plan of one of the L bloek sections; and Fig. 5 shows one of the i other pipe sections.

shown in the drawings,-the boiler 6 has a depending pipe 7 connecting with a horizontal pipe 8 by an l. 9, which constitotes thei-blow-oif for the boiler. the pipe 9 extending through. the rear wall 10 of the furnace. i For the straight pipe portions 7 and S I use. complemental sections 12 of I substantially semi-cylindrical, or semi-tubular form, one of which is shown separately for interlocking engagement, and the fiat or in Fig- 5. The opposite end faces are tongue and grooved at 13 and 14 respectively diametral faces of the/two blocks thaten gage when placed around the pipe, are also her of longitudinally extending bores 11, two

tongue and grooved at l5 and 16 as indi cated, to provide a tight oin-t. To secure these sections on. the pipe I provide a numbeingshown in eachsecti'on a quadrants distance removed. When these sections 12 are placed around the pipe- 8, with the en gaging faces in adjacent blocks removed a In the accompanying drawing illustratl complemental block sections 1.8 and 19/ These sections when brought together have a central enlarged opening 20 for the L of the pipe, and smaller openings at 21 and 22 for the two pipes that engage the L. The flat. engaging faces of these two sections areprovided with tongue and groove port-ions, 23 and 24 respectively, adapted for interlocking engagement. It will be seen from Figs. 1 and 2 that these two blocks have their engaging faces extending vertically and alining with the horizontal pipe 8. The faces 25 and 26 of these blocks that engage .the adjacent block sections 12, are shown provided with tongues 27, that engage the grooves 14 of the sections 12 to interlock with the same. These block sections 18 and 19ers further provided with bores 28 that register with the boresll of the sections 12, for the purpose of receiving the rods 17, as indicated in Fig. 2. These I rods thus serve not only to lock the straight pipe sections in position, but also will hold the L sections in proper place around the L. However, if desiredadditional locking means may be provided at the outer portion of the sections 18 and 19. As shown I provide register bores 29. in these sections,

through which a bolt member 30 can be inserted and secured to screw the sections tightly together. The outer ends of .the bores 29 can be slightly enlarged and rev ceive the asbestos cement to protect the bolts.

Also the bores 28 can be closed with cement to protect the ends of the rods from action of'the fire and gases The upper faces 31 of the block sections 1 8 and 19 mav be provided with a tongue 32 to interlock with the sections 12 that are placed on top of the L blocks, as shown tight joint with theL blocks. These sections are continued upward as far as they can be inserted beneath the boiler, and the in Fig. 1, thus'interlocking and forming a .tions 12 are then added to the-WalllO, and ina y extend mg in the same and be cemented therein in blocks are added, from the 'The two .L blocks' 18 and 19 are placed remaining space filled with fireproof co,

ment 33, to entirely, protect the blow-oif pipe." The other sections 12 are continued into an openthe usual manner. The L sections 18 a'ndlf) inay'also be provided with registering openings 34 in the'bottonr portion, and a number .of the block sections-l2 be placed below the L sections to' for'm a support for these blocks, as indicated in Fig. 1. The lower face of the,L sections has a groove 35 for interengag'ement with these block sections 12 This will serve to close the opening 34 and pro-' tect the L section. But if desired these blocks 12 cai1'be omitted, and the opening 34closed by the usual asbestos cement.

In theuse of my improved covering, the

sections 1-2arefirst placed around the hori- 17 inserted as the zontal pipe 8, and the rods joint to the. wall.

around the L' and then the rods extended into the bores in these blocks which will hold them in position. Thcn'the additional bolt 30 if en'iployed, is inserted and tightened to-s ecnre the L blocks. The upper block secup to the boiler. Next the lower sections are placed in position if desired; or else the opening 34 can be. closed by cement.

When it is} desired to inspect the joint it 12 or clear 35,;

1s onlvn'ecessary to remove the lower blocks visib1e,.and the hand can be examineit for leaks. But if a closer 1nspec 'tion is needed the bolt is'renioved and the such parts from the gases. refractory material, bestos or similar substances.

two rods on oneside are Withdrawn, Where- I upon one ofthe blocks as 19 can. be withdrawn, andrcplaced when desired. .It will be understood that: no metal parts-are einplayed, except the rods 17, and sometimes the bolt 30; and those parts are covered by asbestos cement, that completely protect action of the heat and are made of suitable such as fire clay, as-

These blocks Having thus I'claim is:

1.-'In .a pipe protector, the combination of a seriesot conipleinental" block sections for the'straightpipe that have longitudinal regdescribed my invention, what ,istering bores, rods extending through the position adjacent said sections bores to .hold'the sections in' 'iiosition, and a pair. of compleniental L block sections with vertical engaging faces extending parallel the L block sections having.horimmtal bores that register with said pipe section bores said. rods thatthereby lock the L sections in to inclose a pipe L.

- 2. In a pipe protector, the combination of a series of coniplenientai block sections and the pipe closed the opening 34:, when the L is inserted toy and receivefor the straight pipe thathave longitudinal registering bones, rods extending, through -=the bores to hold the sections in position, a pair of coinplelihental L block sections with vertical cngagi ng faces extending parallel with the straiy it pipe sections, the L block sections having horizontal bores that register with saidlpipe section bores and receive said rods that thereby lock the L sections in position adjacent said sections to inclose a pipe L, and a locking member directly connectingthe said L block sections at their outer portions. 3. 'In a pipe protector, the combination of a series of COIIIPlOIHCIIttIl block sections for the straight pipe that have longitudinalregistering bores,' -o(.ls extending through the bores to hold thp sections in position, a pair of complementai. L block sections with vertical engaging r aces extending parallel with the straight pipe sections, the L Ydock sections having horizontal bores that register with said pipe'section bores and receive said rods that thereby lock the L sections in position adjacent said sections to inclose a pipe L, said L sectionshaving transverse registering bores, and a bolt in said bores secur ing the two sections together.

4. In a pipe protector,'the combination of a series of complemental block sections for the straight pipe that have longitudinal reg.- istering bores, rods-extending through the bores to hold th sections in position,'a pailoi conipleinenta L block sections with vertical engaging faces extending-parallelwith the straight pipe sections, the L block section having horizontal bores that register with said pipe section boies and receive said rods that thereby lock the L'seetions'in position adjacent said sections to inclose a pipe L, and coinpleinental block sections for the pipe above the L sectionsthat have interlocking engagement with the said L sections.

5. Ina pipe protector, the,coi'nbination of a series of coinpleniental block sections, for the straight pipe that have longitudinal registering bores, rods extending through the bores to hold the sectionsin position, a pair ot"complemental L block sections with v't's ti'cal engaging faces extending parallel with the straight pip sections, the L block scctions having horizontal bores that registerf s eotiohs having horizontal bores that registan-( ith said pipe section borcs and receive gf gsaidirods thatthereby lockithc Lsections in positionadjacentsaid sectionsto'inclose pip ei L, said L blocks having tho bottom i OrtiOIi open at the cent cr for access to the erlticjal engagingfaces extending "a rallell i ththe sfiraight'pipc sections, the block a Pipe L ii'pipcpiotector t he combiimtionof complemntal block sections for the si /might pipc, "securing means to hold the sections in position, and a pair of compicmental L blocksections with vertical engaging faces extending parallel with ihc straight pipe sections, said. securing means being also arranged to-lock the L sections in position ad.- j'acent said straight pipe sections to inclosc WILLIAM LEMB. 

